The oldest fossils and evidence of modern humans on earth are around 200,000 years old. Before that time lived the ancestors of modern humans and Neanderthals. If all of earth’s history was compressed into 12 hours, what time would you first see modern humans?

Answers

Answer 1

Answer:

I would say around the 11th or 12th hour

Explanation:

seeing as the question calls for ALL of earth's history compressed into 12 hours the timeline should be similar to this: Earth was born at midnight, at around 2-3 AM land masses form, Right after that, life begins, For around 8 hours (11 PM) life is confined in water, right after that we have plants, 22 minutes later we have dinosaurs, 22 minutes later we have mammals, 5 minutes later dinosaurs are extinct, 6 minutes later we have people. So it's most likely the 12th hour. I hope this helps.

Answer 2
you would see modern humans in the last hour, specifically possibly closer to the last couple of minutes if the earth really is as old as scientists predict

Related Questions

ASAP PLLEEASE HURYYYYYYYYYYRRRRRRRRRRRRYY (NO FILES FOR ME NEEDING TO DOWNLAOD PLEASE!)
1.Fill in the blank with the correct term to make the statement true.
During the (day/night)
at the beach, the land cools down
(faster/slower)
than the
(land/ocean).
Because of this, the air over the land is
(Warmer/cooler) than the air over the ocean. The
(More/less)
dense air rises over the ocean and the cooler,
(More/less)
dense air blows in from over the land creating a
(sea/land)
breeze.
2.Which statement is true about winds?



Winds always blow from low to high pressure.


Winds always blow from water to land.


Winds always blow from land to water.


3. Winds always blow from high to low pressure. How do landmasses impact the movement of air and water?



They stop all movement of both air and water.


They speed up the air and water and allow it to pass though.


They change the direction and slow them down.


They slow down the air but speed up the water.

Answers

Answer:

1.Fill in the blank with the correct term to make the statement true.

During the (night)

at the beach, the land cools down

(slower)

than the

(ocean).

Because of this, the air over the land is

(Warmer) than the air over the ocean. The

(More)

dense air rises over the ocean and the cooler,

(More)

dense air blows in from over the land creating a

(sea)

breeze.

2.Which statement is true about winds?

Winds always blow from low to high pressure.

true

Winds always blow from water to land.

false

Winds always blow from land to water.

false

3. Winds always blow from high to low pressure. How do landmasses impact the movement of air and water?

They stop all movement of both air and water.

They speed up the air and water and allow it to pass though.

They change the direction and slow them down.

think this is it

They slow down the air but speed up the water.

pt:2

answering the pictures

9- I don know sorry

15-B

16-A

Explanation:

just trying to help LET ME KNOW IF IT'S WORNG

UmM WhAT Did hE SaYyYyYyyY

A disease caused by the inflammation of mucus membranes inside the bronchial tubes. There are more than 3 million U.S. cases a year.

Answers

Inflammation can have causes that aren't due to underlying disease. Examples include injuries such as sprains and strains, overuse, or insect bites.

What type of worm has a circulatory system?
Nematodes
Segmented worms
Roundworms
Flatworms

Answers

Your answer will be Segmented worms. Segmented worms have a closed circulatory system in which blood is enclosed in blood vessels.

If you start with 5.5 liters of hydrogen peroxide (H2O2), how many molecules of oxygen gas (O2) will be produced?

Answers

Answer:

2.75 mol O2

Explanation:

2 H2O2 = 2 H2O + O2 is the formula

heres a picture of the work

Ans is 2 oxygen atoms

What is the main function of messenger RNA?
a. it adds amino acids to a growing protein chain
b. it carries the information neccesary for protein synthesis
c. it carries the information neccesary for dna replication
d. it carries information that causes deletions and other mutations

Answers

The right answer is C


Messenger RNA (mRNA) carries the genetic information copied from DNA in the form of a series of three-base code “words,” each of which specifies a particular amino acid. 2. Transfer RNA (tRNA) is the key to deciphering the code words in mRNA.

Answer:

it carries the information neccesary for dna replication

Explain why there would be many more plants in an ecosystem than ape-x consumers. I NEED THIS PLS

Answers

Answer:

Biomass decreases with each trophic level. There is always more biomass in lower trophic levels than in higher ones. Because biomass decreases with each trophic level, there are always more autotrophs than herbivores in a healthy food web.

Explanation:

there's your answer.

A scientist designs some experiments to record how various substances change. She then reviewed her results. Which of the investigations listed below is an example of how the substance changed chemically?


Sodium metal reacts violently and explodes with water.


After heating aluminum in a crucible, it began melting at 1200 degrees F


Hydrochloric acid is stored inside plastic containers.


Grinding Copper sulfate allowed it to be dissolved much quicker.

Answers

Answer:

Sodium reacting with water and exploding.

Explanation:

the others are just melting, dissolving and storing a chemical. also I know its a chemical reaction because its the only answer that involves more than one chemical and has an actual change.

hope this helps :)

PLEASE HELP!!!!!!!! giving brainlist

Answers

Answer:

I can only give the answer for the first page.

Explanation:

1. Thermal energy always moves from hot objects to cold objects.

2. When two states of matter reach the same temperature, it is called thermal equilibrium.

hot to cold thermal radiation

1. What is the geologic time scale? Explain how the geologic time scale is a model.
2. How many millions of years was the Paleozoic?
3. During what era did the dinosaurs live?
4. During what period where the first early human relatives found?

Answers

1.) the geologic time scale is a system of chronological dating that relates geologic structure to geologic events. it is a model because it measures and describes events and relationships in geologic history.

2.) the paleozoic period was roughly from 245 million years ago to 545 million years ago.

3.) the dinosaurs lived in the mesozoic era, specifically the triassic period, which was roughly around 230 million years ago.

4.) the first early human relatives were found roughly around d the neogene period, about 25 million years ago, and is in the cenozoic era.
This is the answer hope it will help you

Explain how you could use the solubility of a substance to make a saturated solution.

Answers

Answer:

Add solute to liquid until dissolving stops.

Evaporate a solvent from a solution until the solute begins to crystallize or precipitate.

Add seed crystals to a solution that is supersaturated.

Explanation:

Pls help due in 5 minutes
When does the Southern Hemisphere experience the shortest day (and longest night) of the year? Why?

Answers

Answer:

The hemisphere tilted most toward our home star sees its longest day, while the hemisphere tilted away from the sun sees its longest night. During the Northern Hemisphere's summer solstice—which always falls around June 21—the Southern Hemisphere gets its winter solstice.

Explanation:

Which of the following is NOT a way of making heat?
A. turning on an electric light
B. eating a sandwich
C. rubbing sticks together
D. melting an ice cube

Answers

If this is serious the answer is B....

Answer:

b. You should prolly know this tho lol

Explanation:

what will happen? (Newton's 1st Law Egg Drop)

Answers

Answer:

dogwater

Explanation:

lalidadida

the egg sitting on the tube should stay that way unless its pushed or pulled

Science question! Please read the article and give 2 new facts (not about continental drift please)! Please do this WITHOUT POSTING A LINK TO THE ANSWER (BECAUSE IF YOU DO IT WONT WORK AND YOU'LL BE MAKING ME WASTE MY POINTS TO ASK QUESTIONS!)

Answers

The magma is less dense than the surrounding mantle and as the lava cools and crystallizes on the sea floor, it forms new oceanic crust

( 15 points to whoever replies quickest no links pls ) a farmer has used a fertiliser containing ammonium nitrate, potassium nitrate and ammonium sulphate on his fields but some may have leached into a nearby river. If a sample of river water was tested, what colour would the flame be if there was fertiliser contamination

Answers

If water of the river was tested there would be orange color flame.

What is fertilizer?

Millions of tons of air, natural gas, and mined ores are transformed into plant nutrition products based on the three crucial nutrients nitrogen, phosphorus, and potassium by the fertilizer industry.

The process begins by combining nitrogen from the air with hydrogen from natural gas at high temperature and pressure to produce ammonia, which is then used to make nitrogen-based fertilizers, the largest product category. Natural gas is used as a raw material for about 60% of the time, while the remaining 40% is used to power the synthesis process.

The nitric acid created from the ammonia is combined with it to create nitrate fertilizers like ammonium nitrate (AN). Urea can also be made by combining ammonia with liquid carbon dioxide. To create UAN (urea ammonium nitrate) solution, both of these products can be combined with water.

Therefore, If water of the river was tested there would be orange color flame.

To learn more about fertilizers, refer to the link:

https://brainly.com/question/3204813

#SPJ2

When DNA replicates, the genes in the new strand are the orginal strand.
a. similar to
b. larger than
c. different from
d. identical to

Answers

I think The answer is A
The answer is A similar to

Ill give brainliest and a 5 star review for the best answer Do you think your town or neighborhood has an ecosystem? If you don’t think so, explain why not. If you do think so, what are the producers, consumers, and decomposers in the ecosystem? What roles do humans play in this ecosystem?

Answers

Answer:

yes i think it is has an ecosdystem because it has life

Explanation:

The distance time graphs for two objects are shown below: look at the picture. Which statement is true? Both objects move at variable speeds. Both objects move at a constant speed. Object A is moving at constant speed but Object B is moving at variable speed. Object A is moving at variable speed but Object B is moving at constant speed.

Can you get this done before 10:40 pls

Answers

Answer:

The last statement is correct

Explanation:

HURRY PLEASE

Why did the model car move away from the magnet?

the fields repelled
the fields repelled

the fields attracted
the fields attracted

the magnetic car was pushed forward from contact with the magnet
the magnetic car was pushed forward from contact with the magnet

none of the above
none of the above

Answers

The fields repelled . Repel means to go in an opposite direction
The fields repelled
hope it helps

If Enough Thermal energy And change of state, write each sentence.
Write (solid), (liquid), or (gas) to complete each sentence
If enough Thermal energy is added to a liquid, it will change to a

___________

Please explain in simple terms.
Spam = remove
Googling it = Remove

Answers

Answer:

If enough thermal energy is added to a liquid lets say cold it will freeze turning it into a solid. they same for a solid if enough thermal energy is added it can turn to a liquid or a gas.

Explanation: Its science.

Answer:

gas

Explanation:

I don't know, just it is gas bc the atoms gain space and move freely and yeah

Which two elements are likely to form a compound that has ionic bonds?


sulfur and hydrogen

nitrogen and oxygen

sodium and chlorine

carbon and oxygen

Answers

Explanation:

for having a ionic bond we need great delta X that we see in electropositive atom (Na) and an electronegative atom(F)

Sodium and chlorine since sodium is a metal and chlorine is not!

×!¡! Measurement !¡!×
Record the volume of the liquid in the graduated cylinder.
The volume of the liquid is ______ milliliters.

Answers

53???? that’s my guess

Answer:

53 trust meeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Explanation:

Ill give brainliest and a 5 star review for the best answer Do you think your town or neighborhood has an ecosystem? If you don’t think so, explain why not. If you do think so, what are the producers, consumers, and decomposers in the ecosystem? What roles do humans play in this ecosystem?

Answers

Answer: I do think that neighborhoods are an ecosystem

Explanation: a ecosystem contains living and non-living things, some examples are the people,plants,and pets are living organisms and the houses and the street lamps are non living. Therefore making a neighborhood a ecosystem

An ecosystem is comprised of all the non-living elements and living species in a specific local environment. Components of most ecosystems include water, air, sunlight, soil, plants, microorganisms, insects and animals. ... Many of these contributors say, yes, certainly, cities are ecosystems.

What determines a single inherited trait of an indiviual ?
a. one pair of many pairs of genes
b. a disrupted cell cycle
c. one half of the replicated DNA stand
d. amino acids joined to form proteins

Answers

Answer:

The answer is A.

The pair of genes from the parent determines what trait the offspring inherits.

It is A. One pair of many pairs of genes

Mr. Rogers wanted to study the affect of different types of music would have on students ability to complete the IA. What is his dependent variable? What Is his independent variable ?

A. classrooms
B. types of music
C. IA scores
D. students

Answers

C because it can change
C is the answer:)))))))))

I NEED HELP ASAPPPPPPPPPPPPPPPP

Answers

Answer:

i wold think it is C

Explanation:

Answer:

c i want brainiest

Explanation:

1.Which of the following is an example of a non-renewable resource?
A.Wind
B.Solar (Sun)
C.Trees
d.petroleum

2.Burning fossil fuels releases which gas into the air, making the Earth warmer?

A.Oxygen
B.Water
D.Nitrogen
D.Carbon Dioxide

Answers

1. D: Petroleum
2. D: Carbon Dioxide
1 is petroleum. 2 is carbon dioxide

some students observe four different lab investigations. The students record their observations in a table.
Investigation
Observations
1
A beaker of water is
heated on a hot plate. Bubbles form in
the water, and steam is given off.
2
Oil is added to a beaker of water. Oil forms a layer on top
of the water
3
Sand and iron filings are mixed in a beaker. A magnet is
then used to separate the iron filings from the sand.
4
A piece of chalk is placed in a beaker of vinegar Bubbles
form as a gas is given off.
Which investigation most likely involved a chemical reaction?

Answers

Answer:

Number 4 is an example of a chemical reaction

Explanation:

heThe chalk is reacting with the vingear which is creating a new substance. The new substance is the gas that the reaction gives off.

I think the number 4 is the right answer

Define the following terms

Uniformitarianism

&

trace fossil

Answers

Answer:

Uniformitarianism- A theory that geologic process that occur today are similar to those that have occurred in the past

Trace Fossil- A fossil of a foot or trail or other travel of an animal rather than of the animal itself

Uniformitarianism: the theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes.

Trace fossil: a fossil of a footprint, trail, burrow, or other trace of an animal rather than of the animal itself

What happens to salt water and fresh water when you try to mix them.

Answers

Answer:

Salt water overtakes the fresh water

Explanation:

Answer:

It all becomes salt water, unless there is enough fresh water to dissolve the salt.

Explanation: Science/Chemistry

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